
.head {
	position: sticky;
	top: 0;
	height: 75px;
	line-height: 75px;
	z-index: 999;
	width: 100%;
}

.font,
.phone {
	line-height: 75px;
	font-size: 18px;
	color: #FFFFFF;
	font-weight: 900px;
	text-align: center;
	font-family: 微软雅黑;
}

.move {
	position: relative;
	width: 100%;
	padding: 0;
}

.move .row {
	margin: 0;
}

.center {
	width: 100%;
	padding: 0;
}

.center video {
	width: 100%;
}

.imge-video {
	margin-top: -75px;
}


.title {
	text-align: center;
	height: 150px;
	margin-top: 60px;
}

.title h3 {
	font-size: 40px;
	font-weight: 900;
}

.title h4 {
	font-size: 24px;
	color: #999999;
}

.title span {
	box-sizing: border-box;
	display: block;
	width: 200px;
	height: 60px;
	color: #0F0F0F;
	line-height: 60px;
	margin: 0 auto;
	border: 2px solid #0F0F0F;
	font-size: 26px;
}

.title a {
	text-decoration: none;
}

.case {
	height: 1100px;
}

.case img {
	width: 555px;
	margin-bottom: 10px;
}

.product h4 {
	font-size: 26px;
	font-weight: 900;
}

.logos div{
	border: 1px solid #999999;
}
.logos img {
	width: 195px;
}

.place {
	margin-top: 100px;
	position: relative;
}

.place img {
	width: 585px;

}


.img_text {
	position: absolute;
	bottom: 20px;
	left: 155px;
	text-align: center;
}

.img_text .p1 {
	font-size: 32px;
	font-weight: bold;
	color: #FFFFFF;
}

.img_text .p2 {
	font-size: 20px;
	color: #FFFFFF;
}

.footer {
	width: 100%;
	background-color: #272727;
	height: 650px;
	margin-top: -100px;
}

.contact {
	margin-top: 150px;
}

.contact h5 {
	font-size: 16px;
	color: #999999;
	margin-bottom: 8px;
}

.contact p a {
	font-family: 'DIN-Medium';
	font-size: 28px;
	color: #FFFFFF;
}

.help {
	margin-top: 10px;
	text-align: center;
}

.help h1 {
	font-size: 40px;
	color: #FFFFFF;
}

.help img {
	margin-top: 50px;
	width: 200px;
	height: 200px;
}



@media screen and (max-width:768px) {
	.reading {
		position: absolute;
		bottom: 50px;
		left: 0;
		color: #FFFFFF;
	}

	.title {
		text-align: center;
		height: 100px;
		margin-top: 50px;
	}

	.title h3 {
		font-size: 24px;
		font-weight: 900;
	}

	.title h4 {
		font-size: 16px;
		color: #999999;
	}

	.product h4 {
		font-size: 26px;
		font-weight: 900;
	}

	.product {
		width: 100%;
	}

	.product img {
		width: 100%;
		height: 180px;
	}

	.photo {
		position: relative;
	}

	.photo h4 {
		font-size: 20px;
		margin-bottom: 20px;
	}

	.photo p {
		width: 400px;
	}

	.photo_font {
		position: absolute;
		top: 20px;
		left: 30px;
	}
	.bottom {
		width: 100%;
		height: 100px;
		background-color: #1b1b1b;
		text-align: center;
		line-height: 50px;
	}
	
	.bottom span {
		font-size: 14px;
		color: #999999;
	}
	
	.bottom a {
		margin-left: 60px;
		color: #999999;
		text-decoration: none;
	}
}

@media screen and (min-width:769px) {
	.reading {
		position: absolute;
		bottom: 100px;
		left: 0;
		color: #FFFFFF;
	}
	.bottom {
		width: 100%;
		height: 60px;
		background-color: #1b1b1b;
		text-align: center;
		line-height: 60px;
	}
	
	.bottom span {
		font-size: 14px;
		color: #999999;
	}
	
	.bottom a {
		margin-left: 16px;
		color: #999999;
		text-decoration: none;
	}
}

@media screen and (min-width:993px) {
	.reading {
		position: absolute;
		bottom: 150px;
		left: 120px;
		color: #FFFFFF;
	}

	.reading h1 {
		font-size: 72px;
		font-weight: 900;
	}

	.reading h3 {
		font-size: 32px;
	}
	.bottom {
		width: 100%;
		height: 60px;
		background-color: #1b1b1b;
		text-align: center;
		line-height: 60px;
	}
	
	.bottom span {
		font-size: 14px;
		color: #999999;
	}
	
	.bottom a {
		margin-left: 16px;
		color: #999999;
		text-decoration: none;
	}
}

